RAM Structural System Help

Brace Element Formulation

The formulations for brace elements are basically the same as those of a column element. Axial, shear, bending and torsional deformations are considered. However, unlike column elements, brace elements can span in any direction in a vertical plane between two floors with their major direction always in the vertical plane. Brace elements can also span across multiple floors. A set of additional transformations are required to transform the stiffness of brace elements to the global coordinate system. Specifying releases in all the three rotational directions reduces brace elements to simple truss elements with axial deformation capability only.

The brace element of RAM Frame does not include the effects of rigid end zones.